Whenever I see a great smile, the person always seems to have a similar 'look' from a kind od 3/4 profile look.It's like their lower cheek area (the one furthest away from you) is hidden by their teeth/jaws.As if the inside of their cheek is superglued to their lower gums on the inside.

I used to think it was just extra fat, but I often see overweight people with this effect, and skinny people without it.

I've attached a pic to help explain.The gorgeous girl has the backwards 'C' shape.The guy (who is lean) has more of a 'C' shape, and you can see the flesh that is inbetween the apple of his cheeks and his chin.On the far right, i've made it look similar to the girls by erasing the flesh.I think it makes his smile look a lot better. However, losing weight would never achieve that look

Is it to do with having jaws that are so 'advanced' that they hide the flesh?Is it something to do with having a large ramus which pulls the whole area 'tort'

What is causing the difference between them regarding this effect?What operation does the guy need to mimic the effect of the 'after' pic